The warning is generated by this kernel patch. https://patchwork.kernel.org/patch/10057993/
"Some BIOS implementations route ACPI codes other than 0x83 [in this case 0x86] to INT3400 [thermal] device. Ignore these ACPI notification codes because the INT3400 driver does not handle them." Also affects Lenovo Tablet 20L4 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1786906 Title: "ACPI unsupported" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1786906/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
